Home / 113,815.40-157,064.02-62,828.52

Finding the Fourth Proportional to 113,815.40, 157,064.02 and 62,828.52

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Solution

The fourth proportional to 113,815.40, 157,064.02 and 62,828.52 is: 86,702.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,815.40 : 157,064.02 = 62,828.52 : x
  2. Step 2: Convert to fraction form
    113,815.40/157,064.02 = 62,828.52/x
  3. Step 3: Cross multiply
    113,815.40x = 157,064.02 × 62,828.52
  4. Step 4: Simplify right side
    113,815.40x = 9,868,099,921.85
  5. Step 5: Solve for x
    x = 9,868,099,921.85/113,815.40
  6. Step 6: Final answer
    x = 86,702.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.